Funny, but I don't recall one scene this time around when EJ was anxious to divorce Nicole.

I don't think that's true. And, they haven't shown one scene that suggests that is the case at all. I think it's all about Nicole's perceptions. She really believes that EJ doesn't love her, and so she believes he's be happy to be divorced from her. Nothing that EJ has done at all since February even remotely shows that he wants their marriage to be over. I think it just shows what is always true about Ejole, one or both of them truly believes the other doesn't love them because of the lies they've told & things they have done, when it reality they both do really love each other and want the same things. So I don't think the writers are actually trying to say that's true, it's just showing that's what Nicole believes, that EJ doesn't love her and doesn't want to be married to her anymore.

How does EJ chasing Sami for the last 4 months demonstrate that he still loves Nicole? If anything, it demonstrates that he's moved on with his life and she needs to do same.